Nature released the results of an online survey in which 20 percent of respondents, largely drawn from the scientific community, admitted to using brain-enhancing drugs like Ritalin (methylphenidate) and Provigil (modafinil).

Sixty-two percent of the scientists who had taken drugs used Ritalin while 44 percent reported using Provigil and only 14 percent had tried beta blockers like propranolol.
The 1,427-person survey was launched after a duo of articles this winter touched off a storm of questions about widespread neuroenhancer use by the scientific community. Jonathan Eisen of UC-Davis, an evolutionary biologist, even successfully spread an April Fools' rumor that the National Institutes of Health were planning to regulate the use of brain "steroids" as a condition of funding scientists.
All of this led me to ask The Tbt geeks (and other readers) three questions:
1. Have you used cognitive enhancers?
2. Did they work for you?
3. Would you talk to me about your experiences?
Rafiki will we get to hear from you?? and Ex.Also Lord mutt remember it Drug enhancing,and not Recreational use.

And Evil-Q we know yours already

GTO